Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)

Bukhari :: Book 5 :: Volume 59 :: Hadith 747

Narrated Abu Ishaq:

I asked Zaid bin Al-Arqam, "In how many Ghazawat did you take
part in the company of Allah's Apostle?" He replied, "Seventeen." I
further asked, "How many Ghazawat did the Prophet fight?" He
replied, "Nineteen."